Demountable wheel



Dec. 12, 1933. E. l.. FICKEN DEMOUNTABLE WHEEL Filed April 1l, 1933 MEE* III INVENTOR Patented peg. `12, 1933 i UNITED-STATES Paf-reni orner-DEMOUNTABLE WHEEL Edward L. Ficken, Atlanta, Ga.

This invention relatesito demguntable Wheels. object of the invention isthe lprgvision of a wheel having a hub portion which may be readilyancrapidly' attached .to Aa .brake drum and rea brake drum with meansfor frictionally locking shoes connected with the hub section tothevstuds..

A further object of the invention-is the provision of a demountablewheel having@ hub $ec= tion provided with openings and shoes connectedwith the hub section adjacent the openings, the openingsbeing adapted toreceive studs secured to a brake drum and spaced from the shoes, theAadjacent faces of the studs and shoes being inclined tov provideatapering recess to receive rollers which frictionally lock the shoes tothe studs, a spring being employed for maintaining the rollers inAfrictional engagement with the faces, means being employed for`releasing the y, rollers to permit ready removal of ythe hub sectionfrom thebrake drum. a 4 This invention will be best understood from aconsiderationof the following detailed description, in view oftheaccompanying drawing forming a part of the specification; nevertheless,itis u to be understood thatthe invention is not confined to thedisclosure, being susceptible of Asuch changes and modifications whichshall denne no material departure from the salient features l.of theinvention as expressed in the. appended claims.

In the drawing: Figure 1 is a View in elevation of a demountable wheelconstructed in accordance with the principlesof my invention with thetire removed,

5* Figure v2 is a horizontalv section taken along e0 the line 2--2 ofFigure 1,

"Figure, 3 is a view in perspective of a shoe adapted to be secured to ahub section of a wheel, -.Figure 4 is a view in perspective of a closureplate for a tapering recess formed between a shoeon the hub section anda lug on the brake drum, 1 Y r Figure v5 is a view side closure platesfor the recess,

4frictionally locking the hub section to the brake drum, and Y Y s YFigure '7 is a view in perspective of a pin for releasing a. frictionroller which locks the hub section to the brake drum. n .l

Referring more particularly to the drawing, 10

in perspective of one of the I l Figure 6 is a view in perspective of'aroller for` k Application April 11, 1933. Serial No. 665,604 7 claims..(or. 301-6) designates a brake drum having openings 11 and 12 in whichare mounted studs 13` and 14, respectively. These studs may be rivetedor welded or secured in any approved manner.y It will` be noted that thestuds 14 are shorter than the 60 studs 13.' Y

A hub section 15 of a wheel is provided with a central opening 16adapted to align with an opening 17 in the brake drum 1i). The hubsection is provided with passages 18 and 19 to receive re- 65 spectiyelythe studs 13 and 14. It will be noted that the portion of each of thestuds which passes through the hub section 15 is of greater diameterthany the portion which passes through the openings 11 and 12 in thebralge drum So that a 7.0 shoulder is formed on the stud which restsupon the brake drum 10,

The hub Section iS provided with 'a flange 29 which is secured to anannular flange 21 and the inner edge of the flange 21res`ts upon thebrake "15 drum 1 0. Y

A shoe, generallydesignated by the numeral 25, projects 4*laterally fromthe hub section 15 and is carried by a base member 26V formed'integrallytherewith. The'base member is secured at 27 to 80 the `hub-section 15 inany approved mannen It will be'noted that the shoes 25 are spaced fromthe studs 13v and the outer face of each shoe is inclined at an angle'as shown at 28. A face 29 of each stud 13, which is opposite the face 28of 85 ashoe 25, likewise is inclined outwardly to providea taperingrecess for apurpose which will be presently explained. Each base member`is provided with an opening 30 which is received by a lug 13.

A pin 31 is rotatably mounted in a passage 32 inthe shoe 25 andtransversely'thereof. This 'pin is provided with va cam member 33 havinga seat 34 upon which a roller 35 rests at times. The outer end ofthe pinis bent in the 'form of `95 an eye 36 which receives a pin 37 in theinner end of a handle 38.

A plate 40 is secured in any approved manner by means of pins 41 passingthrough openings 42 in the plate 40 and-into passages in the top of the100 shoe 25'. This plate is provided with a projection `43 havingacurved seatl 44 to engage the roller 35.

The proj ectionis provided with a pocket 45 which receives a spring 46and this spring has its inner end pressing against the roller 35. a 105A pair of plates 50 are secured in any approved manner to the sides ofthe shoes 25 for closing the ends of the recess 28 to maintain theroller 35i in position. lEach plate is provided with an Y elongated slot51 toreceive the pintles 52'on the 110 ends of the rollers formaintaining the rollers in a predetermined position while permittingloutward movement of the rollers as will be presently explained.

The inner edge of the base member 26 of the shoe 25 is provided with acut-out portion 53 which is received by a complementary cut-out portion54 on the hub section 15. The shoulders thus formed aid in maintainingthe shoes in proper position.

The operation of! my device is as follows: With the rollers 35 inposition and the cam member 33 in the position shown in Figure 2, theroller will be moved into engagement with the curved seat 44 on theprojection 43 of the plate 40. Thus the roller will be out of engagementWith the inclined faces 28 and 29, respectively, of the shoes 25 and thestuds 13. In other words, since the recesses are tapered inwardly thenarrower portions will be nearer the brake drum 10 while the expandedportions will be at the vouterv portionsof thev recesses. Y With therollers 35 inthe outwardpositionandagainst the seats 44 the hub 15u/laykbeureadily slipped off the brake drum 10 ,since` the Irollers 3 5 do notlock the shoes 25 to the studs.

In order to lock the hub section to the brake Adrum 10, it is onlynecessary to move the arms 38 downwardly inffflat contact with the hubsection 15 as shown infdotted lines in Figure 1. lWhen this` isdone thecam member 33 will be moved from its supporting position relative to theroller 35 and the springs 46Uwill force the rollers 35 into wedgingactionrwith the restrictedportion of the tapered `recesses between theshoes 25 and the f.' 1 ugs1f3 so thatthe rollersuwill frictionally locktheimlov sectign. t0 .the brake. drumvWhen it is desired to removethewheel from .the brakedrum it is only necessary to raise the arms,3,8A tothe position shown in Figs. l and 2 i when the ammembers -33'will again elevate the rollers 35 and release said rollers from 'theirfric- ,inalengagement beiween the inclined faces of .the shoes 25 andthe vstuds 13. l y

effect the shoes 25 are lngswhich project outwardly, `from .thebasemember 26 and these are spaced around the hubnsectionas shown in.Fig.j 1'. The studs 1'4 which are received by the passages v,19 inthehnbwsection 15 aid in '*rnaintaining therwheelrwon the brake/drum at`spaced points in connection with the studs Y13.

' 1. A demountablewwheel comprising4 a vlbrake drum, studs projectingfrom a face of the drum, each stud having anrinciineefgace, sie wheelhaving a hub section provided withwope'nings to receive thestuds, ashoeon the hub section adja# v cent each Vstud and having amfacecomplementarily inclined to the face of each stndto provide an inwardlytapering recess, a roller in the recess,

meansiory urging the roller into the restricted portionrof the recessfor locking the hub section to the brake drum, and means for moving theroller intothe expanded portion of the recess to release the hub sectionfromythe drum.

2. A ,demountable Wheelcomprising a brake drum, vstuds projecting from aface of the drum,

each stud' having an inclined face, the wheel` having a hub' sectionprovided with openingsto receive the'studs,"a shoe on the hub' sectionadjacent each studand'having a facecomplementaruy manned' tftheface ofeachfstud -to'provide anfinwardly taperingfrecess'a roller in therecess, n'ieansfor urging theroller into the restricted portion of therecess for locking the hub section to the brake drum, each shoe beingprovided with a transverse passage, a pin rotatably mounted in saidpassage, a cam on the inner end of the pin adapted to engage the rollerand move the same into an operative position, and means for rotatingsaid pin.

3. A demountable wheel comprising a brake drum, studs secured to a faceof the drum and projecting laterally therefrom, the wheel having a hubsection provided with openings to receive the studs, a shoe secured tothe hub section adjacent each stud, the adjacent faces of the shoe andstud being inclined outwardly to provide a tapering recess with theexpanded portion of the 'recess being located adjacent the outer ends of90 'for forcingth'e` roller into the restricted portions of the recessfor securing the hub section to the drum, and means for forcing theroller out of theV restricted portion of the recess to release the hubsection from the drum. 4. A' vdemountable wheelpomprising a' brake drum,studs secured toa faceof theV` drum and projecting `laterally therefrom,thewheel having a hub section provided with openings Jto receive thestuds, a shoe'secured to thehub section 'adjacent each studfthevadjacentv faces ofithe shoe and stud being inclinedoutwardly to provideva tapering recess with the expanded portion ofthe recess being locatedadjacent `the outer endsof y the shoe vand stud, means for closing theexpanded end of the recess, av roller inthe'recess, a spring for forcingthe roller into the restricted portions of the recess forsecuring theYhub 'sec- 110 tion to the drum, a pin rotatably carried by each n shoeandv having av camlocated at the-innerv'end 4 of the recess, means forrotating the pin to cause the caml to engage the roller and move thesame out of engaging relation with the inclined faces of the recess torelease the lhub section fromthe e brakedrum. 5. A vdemountable wheelcomprising a brake drum, studsfsecured toa face of the drum; the wheelhaving a hub section provided with openings to receive the studs, a shoeylocated in close associationwith each` stud and -having a base 'rmember provided with an opening received by said-stud, means for'securing the base members `to the hubi'se'ction, eachy shoe and lugbeing 125 spaced apart and havingthe adjacentlyfdisposed faces inclinedoutwardlyto provide a tapering 'I recess, a roller located in therecess, a plate secured tothe outervend ofthe shoe to close the outerend ofthe recess, a spring-urging the roller inwardly of the recess forlocking the shoeft `the lug, means in the recess forlmovingv the rollerto shoe-releasing position, and means for actuating the-last-menti'onedmeans; s y f il:

6.1 Afdemountable Wheel comprising a brake drum, studs secured to a faceof thev drum-,the wheel having a hub section'provided with openings toreceive the studs, a shoe'located ini close association with ea'ch studand having a base member' provided with an opening received: by saidstud, means for securing 'the' base members 140 to the hub section,each' shoe and lug being' spaced apart and having the adjacentlydisposeddaces inclinedv outwardly toA provide a tapering recess, aroller locatedin the recess, a plate secured tothe outer end of thershoeto close the outer end ofthe recess, va spring urgingtheroller'inwardlyof the recess for locking the shoe to A.the lug, a cam at-the inner endof the recess adapted to be'rnoved into"operative'relation with'atheroller for shifting the 'roller out of lockingw'en-A gagement betweenthe shoe and lug, and means for actuating the cam. Y

7. A demountable wheel comprising a brake drumfstuds secured to a faceof the drum, the wheel having a hub section provided with openings toreceive the studs, a shoe located in close association with each studand having a base member provided with an opening received by said stud,means for securing the base members to the hub section, each shoe andlug being spaced apart and having the adjacently disposed faces inclinedoutwardly to provide a tapering recess,

a roller located in the recess, a plate secured to the outer end of theshoe to close the outer end of the recess, said plate having a lipprojecting into the outer end of the recess and provided with a pocket,a spring in the pocket for urging the roller into the reduced portion ofthe recess so that the roller will frictionally engage the inclinedfaces and lock the hub section to the drum, and means for moving theroller out of engagement with the inclined faces for re leasing the hubsection from the drum.

EDWARD L. FICKEN.

